Three industrial solid wastes including red mud, carbide slag, and phosphogypsum combined with ordinary Portland cement were used as curing agents to solidify/stabilize loess polluted by a high concentration of copper ions. The unconfined compressive strength, resistivity, permeability coefficient, copper ion leaching concentration, pH value, and other engineering application evaluation indexes were analyzed to preliminarily assess the applicability of the curing agent in the remediation of soil contaminated with a high concentration of copper ions. The mineral phases and functional groups of solidified soil were detected using XRD and FTIR, showing that the strength, electrical resistivity, and pH value of solidified soil decrease following the addition of copper ions. Moreover, the strength and resistivity of solidified soil increase with the curing age, and the pH value decreases with age. For solidified contaminated soil, when the total content of curing agent increases from 10 to 20%, the maximum 28 d strength increases from 1.35 to 5.43 MPa, and in this study, its permeability coefficient, copper ion leaching concentration, and pH value were found to be within the limits set by relevant national standards. In conclusion, red mud-carbide slag-phosphogypsum combined with cement has a good stabilizing effect on sites polluted with a high concentration of copper ions.

Site contamination poses a grave danger to the environmental quality and human health, and its remediation has been a focus of worldwide concern over the last few decades. Based on 5068 bibliographic data (2001–2022) acquired from the Web of Science Core Collection (WoSCC), this study employed a scientometric analysis approach to analyze the present state and investigate the trends of contaminated site remediation studies. The results of this study provide an in-depth response to the following: (1) publication characteristics of polluted site restoration studies; (2) basic information on countries, institutions, journals, and disciplines engaged in remediation research in contaminated areas; and (3) a summary of development trends and hotspots in poisoned field cleanup investigations. In summary, this study assessed the results of research on contaminated site remediation. Those unfamiliar with contaminated site remediation could utilize the information in this study to rapidly merge into the field and grasp the forefront of research on this subject. This article can be regarded as a reference for scholars who desire to conduct further research on relevant subjects.